摘要:
A scroll-type compressor has a front housing, a stationary scroll, and a rear housing arranged in this order. A movable scroll is arranged in a space formed in the front housing and the stationary scroll and opposed to the stationary scroll so that the movable spiral wall engages with the stationary spiral wall. A rotatable shaft is supported by the rear housing and extends through the stationary scroll base plate toward the movable scroll. An orbital rotating mechanism is arranged at the end of the rotatable shaft to cause the movable scroll to orbitally rotate. The orbital rotating mechanism and the rotatable shaft are arranged on the side of the movable spiral wall with respect to the movable scroll base plate.
摘要:
A scroll-type compressor has a front housing, a stationary scroll, and a rear housing arranged in this order. A movable scroll is arranged in a space formed in the front housing and the stationary scroll and opposed to the stationary scroll so that the movable spiral wall engages with the stationary spiral wall. A rotatable shaft is supported by the rear housing and extends through the stationary scroll base plate toward the movable scroll. An orbital rotating mechanism is arranged at the end of the rotatable shaft to cause the movable scroll to orbitally rotate. The orbital rotating mechanism and the rotatable shaft are arranged on the side of the movable spiral wall with respect to the movable scroll base plate.
摘要:
A compressor includes a piston (26) reciprocating in a cylinder bore (25). The piston (26) draws refrigerant into and discharges refrigerant from a compression chamber (36) , which is formed between the piston (26) and a valve plate (14). The valve plate (14) has a discharge port (32) connecting the compression chamber (36) to the discharge chamber (17). A guide passage (41) facilitates the flow of the refrigerant from the compression chamber (36) to the discharge port (32). The guide passage (41) is defined in the compression chamber (36) when the piston (26) is located at the top dead center position. This decreases pressure losses that would otherwise occur when the piston (26) is near the top dead center position.
摘要:
A rotating shaft seal provided with a seal element (E), arranged between a housing (31) and a rotation shaft (32), which contacts the rotation shaft (32), and a seal member (5) made of rubber having a lip end portion (13b), disposed on a fluid storing chamber (33) side to the seal element (E), which contacts the rotation shaft (32), comprising a supporting metal (12) for supporting a rear face of the seal member (5) of rubber.
摘要:
A reciprocating refrigerant compressor having a cylinder block provided with a plurality of cylinder bores in which a refrigerant gas sucked from a suction chamber is compressed to be subsequently discharged into a discharge chamber, a valve plate having suction ports through which the refrigerant gas is sucked into the respective cylinder bores and discharge ports through which the compressed refrigerant gas is discharged, a suction valve attached to one end face of the valve plate, a discharge valve attached to the other end face of the valve plate, a housing assembly attached to the cylinder block and having the suction and discharge chambers, and a sealing unit arranged in one of boundaries between the end face of the cylinder block and the suction valve, and between the suction valve and the valve plate to provide an annular sealing portions around each of the bore ends of the plurality of cylinder bores. The typical sealing unit is formed of a metallic base plate and elastic rubber membranes attached to the opposite faces of the metallic base plate.
摘要:
The flow control valve used in a variable displacement refrigerant compressor, which is incorporated in a refrigerating system, and arranged in a controlling passage fluidly interconnecting between a crank chamber and a discharge chamber or a suction chamber to regulate an opening formed in a predetermined portion of the controlling passage in a control characteristics in which when the discharge pressure of the refrigerant discharged from a discharge chamber of the compressor increases, the suction pressure of the refrigerant entering from the refrigerating system into a suction chamber increases. The flow control valve has a pressure sensing member for sensing of one of the suction and the crank-chamber pressure, and a valve element movable to increase and reduce the opening of the predetermined portion of the controlling passage on the basis of sensing of one of the suction and crank-chamber pressures by the pressure-sensing member.
摘要:
A compressor including a compressing mechanism accommodated in a housing (11, 12). The mechanism draws refrigerant from an intake chamber (131) into a compression chamber (112) and discharges the refrigerant from the compression chamber (112) to the discharge chamber (132). A seal device (26, 27) prevents leakage of refrigerant from the internal space to the atmosphere between the drive shaft (14) and the housing (11, 12). An isolation chamber (123), which is separately formed in the housing (11, 12), accommodates the seal device. A pressure reducing passage (28) reduces the pressure of the isolation chamber (123) to reduce the pressure difference applied to the seal device.
摘要:
The air conditioning system 100 may include a compressor 101, a heating circuit 152, and a capacity controller 181. The compressor 101 has a suction port 115, a discharge port 120, a driving unit 130 provided within a driving chamber 110, a first passage 201 and a second passage 202. The driving unit 130 may decrease compressor output discharge capacity when the pressure within the driving chamber 110 increases. The first passage 201 may connect the discharge port 120 to the driving chamber 110 and the second passage 202 may connect the driving chamber 110 to the suction port 115. The capacity controller 181, 185 may open the first passage 201 when the refrigerant discharge pressure results predetermined pressure. Further, the capacity controller 181, 185 may narrow the second passage 202 in response to the opening of the first passage 201. By opening the first passage 201, the high-pressure refrigerant may be released from the discharge port 120 to the driving chamber 110 through the first passage 201. By narrowing the second passage 202, the high-pressure refrigerant released from the discharge port is difficult to be released from the driving chamber 110 to the suction port 116. Thus, the pressure within the driving chamber 110 may quickly increase, the compressor output discharge capacity can be quickly reduced, the abnormally high discharge pressure of the compressor 101 can be quickly alleviated by the reduction in the compressor output discharge capacity.
摘要:
A control valve(25) for controlling displacement of a variable displacement compressor having a suction chamber(131), a discharge chamber(132), a control chamber(121), and a pressurizing passage(34). The control valve(25) adjusts the amount of refrigerant sent to the control chamber(121) from the discharge chamber(132) to control the compressor displacement. The control valve(25) includes a valve body(29) for adjusting the opened area of the pressurizing passage(34). A solenoid(26) urges the valve body(29) in a first direction with a force corresponding to the value of the current fed to the solenoid(26). A first and second pressure chamber(301,302) are partitioned by a diaphragm(31) in the valve. A target value of the pressure difference between the first and second pressure chambers(301,302) is determined by the urging force of the solenoid. For a given constant solenoid current, the compressor seeks the target value that corresponds to that current. The solenoid(26) requires only a relatively small current range, even if carbon dioxide is used as the refrigerant. Also, the valve(25) minimizes the compressor displacement when it receives no current.
摘要:
A compressor including a compressing mechanism accommodated in a housing (11, 12). The mechanism draws refrigerant from an intake chamber (131) into a compression chamber (112) and discharges the refrigerant from the compression chamber (112) to the discharge chamber (132). A seal device (26, 27) prevents leakage of refrigerant from the internal space to the atmosphere between the drive shaft (14) and the housing (11, 12). An isolation chamber (123), which is separately formed in the housing (11, 12), accommodates the seal device. A pressure reducing passage (28) reduces the pressure of the isolation chamber (123) to reduce the pressure difference applied to the seal device.